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1/*
2 * board-overo.c (Gumstix Overo)
3 *
4 * Initial code: Steve Sakoman <steve@sakoman.com>
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * version 2 as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
18 * 02110-1301 USA
19 *
20 */
21
22#include <linux/clk.h>
23#include <linux/delay.h>
24#include <linux/err.h>
25#include <linux/init.h>
26#include <linux/io.h>
27#include <linux/gpio.h>
28#include <linux/kernel.h>
29#include <linux/platform_device.h>
30#include <linux/i2c/twl.h>
31#include <linux/regulator/machine.h>
32#include <linux/regulator/fixed.h>
33#include <linux/spi/spi.h>
34
35#include <linux/mtd/mtd.h>
36#include <linux/mtd/nand.h>
37#include <linux/mtd/partitions.h>
38#include <linux/mmc/host.h>
39
40#include <asm/mach-types.h>
41#include <asm/mach/arch.h>
42#include <asm/mach/flash.h>
43#include <asm/mach/map.h>
44
45#include <plat/board.h>
46#include "common.h"
47#include <video/omapdss.h>
48#include <video/omap-panel-generic-dpi.h>
49#include <video/omap-panel-tfp410.h>
50#include <plat/gpmc.h>
51#include <mach/hardware.h>
52#include <plat/nand.h>
53#include <plat/mcspi.h>
54#include <plat/mux.h>
55#include <plat/usb.h>
56
57#include "mux.h"
58#include "sdram-micron-mt46h32m32lf-6.h"
59#include "hsmmc.h"
60#include "common-board-devices.h"
61
62#define OVERO_GPIO_BT_XGATE 15
63#define OVERO_GPIO_W2W_NRESET 16
64#define OVERO_GPIO_PENDOWN 114
65#define OVERO_GPIO_BT_NRESET 164
66#define OVERO_GPIO_USBH_CPEN 168
67#define OVERO_GPIO_USBH_NRESET 183
68
69#define OVERO_SMSC911X_CS 5
70#define OVERO_SMSC911X_GPIO 176
71#define OVERO_SMSC911X2_CS 4
72#define OVERO_SMSC911X2_GPIO 65
73
74#if defined(CONFIG_TOUCHSCREEN_ADS7846) || \
75 defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
76
77/* fixed regulator for ads7846 */
78static struct regulator_consumer_supply ads7846_supply[] = {
79 REGULATOR_SUPPLY("vcc", "spi1.0"),
80};
81
82static struct regulator_init_data vads7846_regulator = {
83 .constraints = {
84 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
85 },
86 .num_consumer_supplies = ARRAY_SIZE(ads7846_supply),
87 .consumer_supplies = ads7846_supply,
88};
89
90static struct fixed_voltage_config vads7846 = {
91 .supply_name = "vads7846",
92 .microvolts = 3300000, /* 3.3V */
93 .gpio = -EINVAL,
94 .startup_delay = 0,
95 .init_data = &vads7846_regulator,
96};
97
98static struct platform_device vads7846_device = {
99 .name = "reg-fixed-voltage",
100 .id = 1,
101 .dev = {
102 .platform_data = &vads7846,
103 },
104};
105
106static void __init overo_ads7846_init(void)
107{
108 omap_ads7846_init(1, OVERO_GPIO_PENDOWN, 0, NULL);
109 platform_device_register(&vads7846_device);
110}
111
112#else
113static inline void __init overo_ads7846_init(void) { return; }
114#endif
115
116#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
117
118#include <linux/smsc911x.h>
119#include <plat/gpmc-smsc911x.h>
120
121static struct omap_smsc911x_platform_data smsc911x_cfg = {
122 .id = 0,
123 .cs = OVERO_SMSC911X_CS,
124 .gpio_irq = OVERO_SMSC911X_GPIO,
125 .gpio_reset = -EINVAL,
126 .flags = SMSC911X_USE_32BIT,
127};
128
129static struct omap_smsc911x_platform_data smsc911x2_cfg = {
130 .id = 1,
131 .cs = OVERO_SMSC911X2_CS,
132 .gpio_irq = OVERO_SMSC911X2_GPIO,
133 .gpio_reset = -EINVAL,
134 .flags = SMSC911X_USE_32BIT,
135};
136
137static void __init overo_init_smsc911x(void)
138{
139 gpmc_smsc911x_init(&smsc911x_cfg);
140 gpmc_smsc911x_init(&smsc911x2_cfg);
141}
142
143#else
144static inline void __init overo_init_smsc911x(void) { return; }
145#endif
146
147/* DSS */
148static int lcd_enabled;
149static int dvi_enabled;
150
151#define OVERO_GPIO_LCD_EN 144
152#define OVERO_GPIO_LCD_BL 145
153
154static struct gpio overo_dss_gpios[] __initdata = {
155 { OVERO_GPIO_LCD_EN, GPIOF_OUT_INIT_HIGH, "OVERO_GPIO_LCD_EN" },
156 { OVERO_GPIO_LCD_BL, GPIOF_OUT_INIT_HIGH, "OVERO_GPIO_LCD_BL" },
157};
158
159static void __init overo_display_init(void)
160{
161 if (gpio_request_array(overo_dss_gpios, ARRAY_SIZE(overo_dss_gpios))) {
162 printk(KERN_ERR "could not obtain DSS control GPIOs\n");
163 return;
164 }
165
166 gpio_export(OVERO_GPIO_LCD_EN, 0);
167 gpio_export(OVERO_GPIO_LCD_BL, 0);
168}
169
170static struct tfp410_platform_data dvi_panel = {
171 .i2c_bus_num = 3,
172 .power_down_gpio = -1,
173};
174
175static struct omap_dss_device overo_dvi_device = {
176 .name = "dvi",
177 .type = OMAP_DISPLAY_TYPE_DPI,
178 .driver_name = "tfp410",
179 .data = &dvi_panel,
180 .phy.dpi.data_lines = 24,
181};
182
183static struct omap_dss_device overo_tv_device = {
184 .name = "tv",
185 .driver_name = "venc",
186 .type = OMAP_DISPLAY_TYPE_VENC,
187 .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
188};
189
190static int overo_panel_enable_lcd(struct omap_dss_device *dssdev)
191{
192 if (dvi_enabled) {
193 printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
194 return -EINVAL;
195 }
196
197 gpio_set_value(OVERO_GPIO_LCD_EN, 1);
198 gpio_set_value(OVERO_GPIO_LCD_BL, 1);
199 lcd_enabled = 1;
200 return 0;
201}
202
203static void overo_panel_disable_lcd(struct omap_dss_device *dssdev)
204{
205 gpio_set_value(OVERO_GPIO_LCD_EN, 0);
206 gpio_set_value(OVERO_GPIO_LCD_BL, 0);
207 lcd_enabled = 0;
208}
209
210static struct panel_generic_dpi_data lcd43_panel = {
211 .name = "samsung_lte430wq_f0c",
212 .platform_enable = overo_panel_enable_lcd,
213 .platform_disable = overo_panel_disable_lcd,
214};
215
216static struct omap_dss_device overo_lcd43_device = {
217 .name = "lcd43",
218 .type = OMAP_DISPLAY_TYPE_DPI,
219 .driver_name = "generic_dpi_panel",
220 .data = &lcd43_panel,
221 .phy.dpi.data_lines = 24,
222};
223
224#if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
225 defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
226static struct omap_dss_device overo_lcd35_device = {
227 .type = OMAP_DISPLAY_TYPE_DPI,
228 .name = "lcd35",
229 .driver_name = "lgphilips_lb035q02_panel",
230 .phy.dpi.data_lines = 24,
231 .platform_enable = overo_panel_enable_lcd,
232 .platform_disable = overo_panel_disable_lcd,
233};
234#endif
235
236static struct omap_dss_device *overo_dss_devices[] = {
237 &overo_dvi_device,
238 &overo_tv_device,
239#if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
240 defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
241 &overo_lcd35_device,
242#endif
243 &overo_lcd43_device,
244};
245
246static struct omap_dss_board_info overo_dss_data = {
247 .num_devices = ARRAY_SIZE(overo_dss_devices),
248 .devices = overo_dss_devices,
249 .default_device = &overo_dvi_device,
250};
251
252static struct mtd_partition overo_nand_partitions[] = {
253 {
254 .name = "xloader",
255 .offset = 0, /* Offset = 0x00000 */
256 .size = 4 * NAND_BLOCK_SIZE,
257 .mask_flags = MTD_WRITEABLE
258 },
259 {
260 .name = "uboot",
261 .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
262 .size = 14 * NAND_BLOCK_SIZE,
263 },
264 {
265 .name = "uboot environment",
266 .offset = MTDPART_OFS_APPEND, /* Offset = 0x240000 */
267 .size = 2 * NAND_BLOCK_SIZE,
268 },
269 {
270 .name = "linux",
271 .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
272 .size = 32 * NAND_BLOCK_SIZE,
273 },
274 {
275 .name = "rootfs",
276 .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
277 .size = MTDPART_SIZ_FULL,
278 },
279};
280
281static struct omap2_hsmmc_info mmc[] = {
282 {
283 .mmc = 1,
284 .caps = MMC_CAP_4_BIT_DATA,
285 .gpio_cd = -EINVAL,
286 .gpio_wp = -EINVAL,
287 },
288 {
289 .mmc = 2,
290 .caps = MMC_CAP_4_BIT_DATA,
291 .gpio_cd = -EINVAL,
292 .gpio_wp = -EINVAL,
293 .transceiver = true,
294 .ocr_mask = 0x00100000, /* 3.3V */
295 },
296 {} /* Terminator */
297};
298
299static struct regulator_consumer_supply overo_vmmc1_supply[] = {
300 REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
301};
302
303#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
304#include <linux/leds.h>
305
306static struct gpio_led gpio_leds[] = {
307 {
308 .name = "overo:red:gpio21",
309 .default_trigger = "heartbeat",
310 .gpio = 21,
311 .active_low = true,
312 },
313 {
314 .name = "overo:blue:gpio22",
315 .default_trigger = "none",
316 .gpio = 22,
317 .active_low = true,
318 },
319 {
320 .name = "overo:blue:COM",
321 .default_trigger = "mmc0",
322 .gpio = -EINVAL, /* gets replaced */
323 .active_low = true,
324 },
325};
326
327static struct gpio_led_platform_data gpio_leds_pdata = {
328 .leds = gpio_leds,
329 .num_leds = ARRAY_SIZE(gpio_leds),
330};
331
332static struct platform_device gpio_leds_device = {
333 .name = "leds-gpio",
334 .id = -1,
335 .dev = {
336 .platform_data = &gpio_leds_pdata,
337 },
338};
339
340static void __init overo_init_led(void)
341{
342 platform_device_register(&gpio_leds_device);
343}
344
345#else
346static inline void __init overo_init_led(void) { return; }
347#endif
348
349#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
350#include <linux/input.h>
351#include <linux/gpio_keys.h>
352
353static struct gpio_keys_button gpio_buttons[] = {
354 {
355 .code = BTN_0,
356 .gpio = 23,
357 .desc = "button0",
358 .wakeup = 1,
359 },
360 {
361 .code = BTN_1,
362 .gpio = 14,
363 .desc = "button1",
364 .wakeup = 1,
365 },
366};
367
368static struct gpio_keys_platform_data gpio_keys_pdata = {
369 .buttons = gpio_buttons,
370 .nbuttons = ARRAY_SIZE(gpio_buttons),
371};
372
373static struct platform_device gpio_keys_device = {
374 .name = "gpio-keys",
375 .id = -1,
376 .dev = {
377 .platform_data = &gpio_keys_pdata,
378 },
379};
380
381static void __init overo_init_keys(void)
382{
383 platform_device_register(&gpio_keys_device);
384}
385
386#else
387static inline void __init overo_init_keys(void) { return; }
388#endif
389
390static int overo_twl_gpio_setup(struct device *dev,
391 unsigned gpio, unsigned ngpio)
392{
393#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
394 /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
395 gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
396#endif
397
398 return 0;
399}
400
401static struct twl4030_gpio_platform_data overo_gpio_data = {
402 .gpio_base = OMAP_MAX_GPIO_LINES,
403 .irq_base = TWL4030_GPIO_IRQ_BASE,
404 .irq_end = TWL4030_GPIO_IRQ_END,
405 .use_leds = true,
406 .setup = overo_twl_gpio_setup,
407};
408
409static struct regulator_init_data overo_vmmc1 = {
410 .constraints = {
411 .min_uV = 1850000,
412 .max_uV = 3150000,
413 .valid_modes_mask = REGULATOR_MODE_NORMAL
414 | REGULATOR_MODE_STANDBY,
415 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
416 | REGULATOR_CHANGE_MODE
417 | REGULATOR_CHANGE_STATUS,
418 },
419 .num_consumer_supplies = ARRAY_SIZE(overo_vmmc1_supply),
420 .consumer_supplies = overo_vmmc1_supply,
421};
422
423static struct twl4030_platform_data overo_twldata = {
424 .gpio = &overo_gpio_data,
425 .vmmc1 = &overo_vmmc1,
426};
427
428static int __init overo_i2c_init(void)
429{
430 omap3_pmic_get_config(&overo_twldata,
431 TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_AUDIO,
432 TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
433
434 overo_twldata.vpll2->constraints.name = "VDVI";
435
436 omap3_pmic_init("tps65950", &overo_twldata);
437 /* i2c2 pins are used for gpio */
438 omap_register_i2c_bus(3, 400, NULL, 0);
439 return 0;
440}
441
442static struct spi_board_info overo_spi_board_info[] __initdata = {
443#if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
444 defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
445 {
446 .modalias = "lgphilips_lb035q02_panel-spi",
447 .bus_num = 1,
448 .chip_select = 1,
449 .max_speed_hz = 500000,
450 .mode = SPI_MODE_3,
451 },
452#endif
453};
454
455static int __init overo_spi_init(void)
456{
457 overo_ads7846_init();
458 spi_register_board_info(overo_spi_board_info,
459 ARRAY_SIZE(overo_spi_board_info));
460 return 0;
461}
462
463static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
464 .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
465 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
466 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
467 .phy_reset = true,
468 .reset_gpio_port[0] = -EINVAL,
469 .reset_gpio_port[1] = OVERO_GPIO_USBH_NRESET,
470 .reset_gpio_port[2] = -EINVAL
471};
472
473#ifdef CONFIG_OMAP_MUX
474static struct omap_board_mux board_mux[] __initdata = {
475 { .reg_offset = OMAP_MUX_TERMINATOR },
476};
477#endif
478
479static struct gpio overo_bt_gpios[] __initdata = {
480 { OVERO_GPIO_BT_XGATE, GPIOF_OUT_INIT_LOW, "lcd enable" },
481 { OVERO_GPIO_BT_NRESET, GPIOF_OUT_INIT_HIGH, "lcd bl enable" },
482};
483
484static struct regulator_consumer_supply dummy_supplies[] = {
485 REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
486 REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
487 REGULATOR_SUPPLY("vddvario", "smsc911x.1"),
488 REGULATOR_SUPPLY("vdd33a", "smsc911x.1"),
489};
490
491static void __init overo_init(void)
492{
493 int ret;
494
495 regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
496 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
497 overo_i2c_init();
498 omap_hsmmc_init(mmc);
499 omap_display_init(&overo_dss_data);
500 omap_serial_init();
501 omap_sdrc_init(mt46h32m32lf6_sdrc_params,
502 mt46h32m32lf6_sdrc_params);
503 omap_nand_flash_init(0, overo_nand_partitions,
504 ARRAY_SIZE(overo_nand_partitions));
505 usb_musb_init(NULL);
506 usbhs_init(&usbhs_bdata);
507 overo_spi_init();
508 overo_init_smsc911x();
509 overo_display_init();
510 overo_init_led();
511 overo_init_keys();
512
513 /* Ensure SDRC pins are mux'd for self-refresh */
514 omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
515 omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
516
517 ret = gpio_request_one(OVERO_GPIO_W2W_NRESET, GPIOF_OUT_INIT_HIGH,
518 "OVERO_GPIO_W2W_NRESET");
519 if (ret == 0) {
520 gpio_export(OVERO_GPIO_W2W_NRESET, 0);
521 gpio_set_value(OVERO_GPIO_W2W_NRESET, 0);
522 udelay(10);
523 gpio_set_value(OVERO_GPIO_W2W_NRESET, 1);
524 } else {
525 printk(KERN_ERR "could not obtain gpio for "
526 "OVERO_GPIO_W2W_NRESET\n");
527 }
528
529 ret = gpio_request_array(overo_bt_gpios, ARRAY_SIZE(overo_bt_gpios));
530 if (ret) {
531 pr_err("%s: could not obtain BT gpios\n", __func__);
532 } else {
533 gpio_export(OVERO_GPIO_BT_XGATE, 0);
534 gpio_export(OVERO_GPIO_BT_NRESET, 0);
535 gpio_set_value(OVERO_GPIO_BT_NRESET, 0);
536 mdelay(6);
537 gpio_set_value(OVERO_GPIO_BT_NRESET, 1);
538 }
539
540 ret = gpio_request_one(OVERO_GPIO_USBH_CPEN, GPIOF_OUT_INIT_HIGH,
541 "OVERO_GPIO_USBH_CPEN");
542 if (ret == 0)
543 gpio_export(OVERO_GPIO_USBH_CPEN, 0);
544 else
545 printk(KERN_ERR "could not obtain gpio for "
546 "OVERO_GPIO_USBH_CPEN\n");
547}
548
549MACHINE_START(OVERO, "Gumstix Overo")
550 .atag_offset = 0x100,
551 .reserve = omap_reserve,
552 .map_io = omap3_map_io,
553 .init_early = omap35xx_init_early,
554 .init_irq = omap3_init_irq,
555 .handle_irq = omap3_intc_handle_irq,
556 .init_machine = overo_init,
557 .init_late = omap35xx_init_late,
558 .timer = &omap3_timer,
559 .restart = omap_prcm_restart,
560MACHINE_END